Detachable automatic vacuum storage container

ABSTRACT

A detachable automatic vacuum storage container comprises a box body and a vacuum control device, the box body being provided with a vacuumizing channel, and the vacuum control device being connected with the vacuumizing channel in a removable manner; one end of the vacuumizing channel is connected to the inner chamber of the box body, and the other end is provided with a sealing joint. The vacuum control device is provided with a suction nozzle, when the vacuum control device is connected to the vacuumizing channel, the suction nozzle is inserted and connected to the sealing joint in an airtight way; when the air pressure of the inner chamber of the box body is higher than the preset threshold, the vacuum control device can pump the air to maintain the inner chamber of box body in a vacuum state.

The current application claims a foreign priority to application number 201511014213.0 filed on Dec. 31, 2015 in China.

FIELD OF THE INVENTION

The present relates to the technical field of storage containers, and in particular, to a detachable automatic vacuum storage container.

BACKGROUND OF THE INVENTION

Storage containers are used to store articles, mainly used for storing foods or moistureproof articles. With the increasingly higher living level, people enhance their pursuit of quality of life. Traditionally, the storage containers can protect the foods or articles by simply sealing them to a certain extent. However, there exists air in the storage boxes and foods stored for a long time may be prone to oxidize and deteriorate, the articles stored may be damaged in wet weather condition, therefore, the traditional storage containers can not meet people's increasing living needs. In order to enhance the food preservation effect and moisture and pest control of articles in the storage containers, the vacuum storage containers emerge. The container is in a vacuum state inside, due to isolation of air, foods can be stored longer under the vacuum environment, and the valuables can be stored in the vacuum box, which has a better effect of rodent, pest control and moisture resistance. The existing vacuum storage container usually comprises a vacuum control device and a seal box, and the vacuum control device is usually secured to the seal box, and a vacuum control device can pump air for the assembled box body only; usually the processing and production cost of a vacuum control device is high, so the market retail price is high; for consumers, the storage of articles in the vacuum boxes in a large scope is unrealistic and possibly causes a great waste of space. During use, for some vacuum storage containers, the vacuum control device is monitored, opened and closed manually, which will greatly reduce users' experiences, besides it is difficult to control the vacuumizing time artificially; and if it is operated incorrectly, the storage effect of articles will be affected. The vacuum control device and sealed box are detachable for some vacuum storage containers, but their vacuumizing effect is poor, and it is difficult to align the suction port, or even the port deviation may occur during vacuumizing.

SUMMARY OF THE INVENTION

In order to overcome the above technical problems in prior art, the invention provides a detachable automatic vacuum storage box. It can improve the utilization rate of the vacuum control device, has good vacuumizing effect, and can meet the needs for a long-time storage of articles without users' monitoring.

The invention provides the following technical solutions in order to achieve the above object.

A detachable automatic vacuum storage container is provided, comprising a box body and a vacuum control device, the box body is provided with a vacuumizing channel, and the vacuum control device is connected with the vacuumizing channel in a removable manner; one end of the vacuumizing channel is connected to the inner chamber of the box body, and the other end is provided with a sealing joint, the vacuum control device is provided with a suction nozzle, when the vacuum control device is connected to the vacuumizing channel, the suction nozzle is inserted and connected to the sealing joint in an airtight way, when the air pressure of the inner chamber of the box body is higher than the preset threshold, the vacuum control device can pump the air to maintain the inner chamber of box body in a vacuum state.

Preferably, the sealing joint is made of elastic material, and the end of suction nozzle close to the sealing joint is provided with a tapered portion, and the tapered portion has an increasing diameter in the direction away from the sealing joint.

Preferably, the suction nozzle is provided with a suction ring.

Preferably, it further includes a press-type vacuum relief valve arranged on the box body, the vacuumizing channel runs through the press-type vacuum relief valve, and the sealing joint is arranged on the top of the press-type vacuum relief valve.

Preferably, the vacuumizing channel is provided with a first check valve, the vacuum control device is provided with a vacuum pump connected to the suction nozzle, a second check valve is provided between the suction nozzle and the vacuum pump, and a pressure detecting bypass is provided between the first check valve and the second check valve, the pressure detecting bypass is connected to the pressure detecting apparatus which can control the vacuum pump to stop pumping when the air pressure of the pressure detecting bypass is below the threshold.

Preferably, the pressure detecting apparatus is a piston-type pressure detecting apparatus, comprising a piston tube connected to the exhausting tube and a piston arranged in the piston tube, the piston tube is provided with a circuit switch, and the circuit switch is connected to the circuit of the vacuum pump; when the air pressure in the exhausting tube is lower than the threshold, the piston moves to a position and the circuit switch disconnects the circuit of the vacuum pump.

Preferably, the vacuum control device further includes a switching mechanism, the box body is provided with a trigger mechanism corresponding to the switching mechanism, when the vacuum control device is mounted to the box body, the trigger mechanism triggers the switching mechanism, and the vacuum pump is activated only when the switching mechanism is triggered.

Preferably, the vacuum control device further includes a relief valve control mechanism; when the vacuum control device is mounted on the box body, the press-type vacuum relief valve can be opened or closed by operating the relief valve control mechanism.

Preferably, the box body comprises a box base and a box cover that can be mutually detachable and fixed by sealing, and a groove with the shape corresponding to the vacuum control device is arranged at the top of the box cover, and the groove is embedded at the bottom of the vacuum control device.

Preferably, a suspension-type seal is arranged at the connection between the box base and the box cover, the suspension-type seal comprises a seal body and a seal gasket, one end of the seal gasket is connected with the seal body and the other end is suspended; the seal body is fixed to the box cover under the use state, and the seal gasket is bonded to the sealing surface of the box base.

Beneficial Effects:

Compared with the existing vacuum storage boxes, the detachable automatic vacuum storage containers provided in the invention comprises a vacuum control device and a box body which are connected in a removable manner. One vacuum control device can be used in different box bodies, reducing the processing and production costs. Manufacturers can produce the products with one vacuum control devices matching with a variety of box bodies, reducing the cost greatly. The sealing joint of the suction nozzle inserted into the elastic material can achieve connection, moreover, the tapered portion can play a role of guiding, expanding and tensing, to achieve an excellent airtight connection between the suction nozzle and sealing joint and guarantee no air leakage in the pumping process; in addition, it can automatically start or close the air pumping without artificial monitoring, and keep the inner chamber of the box body in a vacuum state to store items for a long time.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of a detachable automatic vacuum storage container in the invention.

FIG. 2 is a first exploded schematic view of a detachable automatic vacuum storage container in the invention.

FIG. 3 is a second exploded schematic view of a detachable automatic vacuum storage container in the invention.

FIG. 4 is an exploded schematic view of a control device of a detachable automatic vacuum storage container in the invention.

FIG. 5 is a schematic view of a relief valve control mechanism and a suction nozzle of a control device of a detachable automatic vacuum storage container in the invention.

FIG. 6 is schematic view of matching between a relief valve control mechanism, a suction nozzle and a sealing joint of a detachable automatic vacuum storage container in the invention.

FIG. 7 is a cross-sectional schematic view of a suction nozzle and a sealing joint of a control device of a detachable automatic vacuum storage container in the invention.

FIG. 8 is a schematic view of pressure detecting bypass of a control device of a detachable automatic vacuum storage container in the invention.

FIG. 9 is a schematic view of pressure detecting apparatus of a detachable automatic vacuum storage container in the invention.

FIG. 10 is a schematic view of a switching mechanism of a detachable automatic vacuum storage container in the invention.

FIG. 11 is a schematic view of a suspension-type seal of a detachable automatic vacuum storage container in the invention.

FIG. 12 is an assembly schematic view of a suspension-type seal and a box body of a detachable automatic vacuum storage container in the invention.

FIG. 13 is a schematic view of a detachable automatic vacuum storage container when the seal gasket is covered at the end of the box base in the invention.

Notes:

Box body 1, box base 11, box cover 12, the first groove 121, trigger mechanism 122, vacuumizing channel 13, press-type vacuum relief valve 14, housed groove 15; vacuum control device 2, suction nozzle 21, tapered portion 211, suction ring 212, vacuum pump 22, switching mechanism 23, guide mechanism 231, reset spring 232, relief valve control mechanism 24, handle 241, driving mechanism 242, first spring 243, control assembly 245, trigger switch 246; Sealing joint 3; First check valve 4; Second check valve 5; ressure detecting apparatus 6, piston tube 61, piston 62, switch spring 63, circuit switch 64; pressure detecting bypass 7; Suspension-type seal 8, seal body 81, seal gasket 82.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The invention is further described in combination with the drawings and embodiments.

In this embodiment, referring to FIG. 1, FIG. 2, FIG. 5 and FIG. 7, a detachable automatic vacuum storage container comprises a box body 1 and a vacuum control device 2. The box body 1 is provided with a vacuumizing channel 13, wherein the vacuum control device 2 is connected with the vacuumizing channel 13 in a removable manner; one end of the vacuumizing channel 13 is connected to the inner chamber of the box body 1, and the other end is provided with a sealing joint 3, the vacuum control device 2 is provided with a suction nozzle 21, when the vacuum control device 2 is connected to the vacuumizing channel 13, the suction nozzle 21 is inserted and connected to the sealing joint 3 in an airtight way, when the air pressure of the inner chamber of the box body 1 is higher than the preset threshold, the vacuum control device can pump the air to maintain the inner chamber of box body 1 in a vacuum state. The sealing joint 3 is made of elastic material, preferably silica gel or plastic, and the end of suction nozzle 21 close to the sealing joint 3 is provided with a tapered portion 211, and the tapered portion 211 has an increasing diameter in the direction away from the sealing joint 3. The suction nozzle 21 is provided with a suction ring 212. The existing vacuum control device 2 is connected with the box body 1; usually the openings of two tubes with equal diameter are abutted for air extraction. In the invention, the connection is achieved by inserting the suction nozzle 21 into the sealing joint 3, and the tapered portion 211 plays a role of guiding, expansion and tensing; together with the action of suction ring 212, it can guarantee no air leakage in the vacuumizing process, playing a better vacuumizing effect.

In this embodiment, referring to FIG. 6 and FIG. 7, the detachable automatic vacuum storage container further includes a press-type vacuum relief valve 14 arranged on the box body 1, the vacuumizing channel 13 runs through the press-type vacuum relief valve 14, and the sealing joint 3 is arranged on the top of the press-type vacuum relief valve 14. Traditionally, the air extraction structure and the vacuum releasing structure are arranged separately in the vacuum storage box. Users can control them by pressing different keys, which is very inconvenient. In the invention, the vacuumizing channel 13 is cleverly arranged inside the press-type vacuum relief valve 14, and the suction nozzle 21 is used for pressing the press-type vacuum relief valve 14, so that the whole structure is compact and users can use them more conveniently. The vacuumizing channel 13 is provided with a first check valve 4, the vacuum control device 2 is provided with a vacuum pump 22 connected to the suction nozzle 21, a second check valve 5 is provided between the suction nozzle 21 and the vacuum pump 22, and a pressure detecting bypass 7 is provided between the first check valve 4 and the second check valve 5, the pressure detecting bypass 7 is connected to the pressure detecting apparatus 6 which can control the vacuum pump 22 to stop pumping when the air pressure of the pressure detecting bypass 7 is below the threshold. When the air pressure inside the box body 1 is lower than the air pressure outside the box body 1, the first check valve 4 is closed, and air cannot enter the box body 1 from outside. Users can press the suction nozzle 21 to make displacement of the press-type vacuum relief valve 14, so that an air intake passage is formed between the press-type vacuum relief valve 14 and the box body 1, and the outside air can enter the box body 1 through the air intake passage, to release the vacuum state; when it is required to extract the air in the box body 1, the suction nozzle 21 is inserted to the sealing joint 3 at the top of the press-type vacuum relief valve 14 but not pressed; when the air pressure in the box body 1 is greater than preset threshold, the vacuum pump 22 starts; when the air pressure of the inner chamber of the box body 1 is less than the preset threshold, the vacuum pump 22 is closed, at this time, the first check valve 4 is closed and the outside air can not enter the box body 1; a low air content is maintained in the box body 1, to achieve the purpose of vacuum preservation.

Referring to FIG. 8 and FIG. 9, when the air pressure inside the suction nozzle 21 is lower than the threshold, the pressure detecting apparatus 6 can control the vacuum pump 22 to stop air extraction. The pressure detecting apparatus 6 is a piston-type pressure detecting apparatus 6, comprising a piston tube 61 connected to the exhausting tube and a piston 62 arranged in the piston tube 61, the piston tube 61 is provided with a circuit switch 64, and the circuit switch 64 is connected to the circuit of the vacuum pump 22; when the air pressure in the suction nozzle 21 is lower than the threshold, the piston 62 moves to a position and the circuit switch 64 disconnects the circuit of the vacuum pump 22. When the vacuum pump 22 extracts air and the air pressure inside the suction nozzle 21 is lower than the threshold (i.e. the pressure is low enough), the pressure detecting apparatus 6 can control vacuum pump 22 to stop air extraction. According to the aforementioned principle, when the air extraction is finished, the air pressure between the first check valve 4 and the second check valve 5 is equal to that inside the box body 1. When the air pressure inside the box body 1 slightly rises, the change will be conveyed to the exhausting tube between the first check valve 4 and the second check valve 5, at this time, the pressure detecting bypass 7 of the suction nozzle 21 can be connected to convey to the pressure detecting apparatus 6, to restart the vacuum pump 22. In the above structure, the pressure detecting apparatus 6 is arranged in the vacuum control device 2; compared with the most pressure detecting apparatus 6 arranged inside the box body 1 in prior art, this kind of design can save the space of vacuum storage box, and arrange all parts that control the air extraction and intake together to form an integrated part, facilitating the assembly and disassembly of the control unit as a whole. Specifically, as shown in FIG. 9, the pressure detecting apparatus 6 is a piston-type pressure detecting apparatus 6, comprising a piston tube 61 connected to the exhausting tube and a piston 62 arranged in the piston tube 61, the piston tube 61 is provided with a circuit switch 64, and the circuit switch 64 is connected to the circuit of the vacuum pump 22; when the air pressure in the suction nozzle 21 is lower than the threshold, the piston moves to a position and the circuit switch 64 disconnects the circuit of the vacuum pump 22. Specifically, when the air pressure of box body 1 is lower, the air pressure of the suction nozzle 21 is also low, and the air pressure of the suction nozzle 21 is conveyed to the piston tube 61 through pressure detecting bypass 7, at this time, the piston 62 in the piston tube 61 will move to the left under the atmospheric pressure, to disconnect the circuit switch 64, and the vacuum pump 22 stops working; when the air pressure of box body 1 rises, the air pressure will be conveyed to the piston tube 61, and the piston will move to the right under the action of the switch spring 63, the piston 62 touches the circuit switch 64 to re-connect the circuit switch 64, start the vacuum pump 22, to extract out the air inside the box body 1.

Referring to FIG. 1, FIG. 5 and FIG. 6, when the vacuum control device 2 is mounted to the box body 1, the relief valve control mechanism 24 is able to open or close the press-type vacuum relief valve 14. The relief valve control mechanism 24 includes a handle 241 that controls the suction nozzle 21, and the handle 241 is hinged to the vacuum control device 2. The suction nozzle 21 is a bending structure, one end of the suction nozzle 21 is abutted against the handle 241 and the other end of the suction nozzle 21 is abutted against the sealing joint 3; pulling the handle 241 can control the movement of suction nozzle 21 to press the sealing joint 3. Specifically, a driving mechanism 242 is arranged between the handle 241 and the suction nozzle 21 to convert the rotary motion of handle 241 to a linear motion of suction nozzle 21. The driving mechanism 242 can be set to a non-full-circular shape; when the handle 241 is rotated, the non-full-circular part can be abutted against and drive the suction nozzle 21; or a gear structure can be arranged in the place where the handle 241 is in contact with the suction nozzle 21, through the gear drive, it can also achieve the above functions. A first spring 243 is connected between the handle 241 and suction nozzle 21. The suction nozzle 21 is snapped with the driving mechanism 242 via the first spring 243, so that the suction nozzle 21 can be reset when the handle 241 is reset, to prevent the sealing joint 3 is always pressed by the suction nozzle 21. The first spring 243 can also be arranged between the suction nozzle 21 and the box body 1; when the suction nozzle 21 is not pressed down by the handle 241, the first spring 243 will push the suction nozzle 21 far from the sealing joint 3, to achieve the above functions. Specially, referring to FIG. 1, the vacuum control device 2 is provided with a groove 15 that matches the shape of the shape of the handle 241. The handle 241 can be placed in the groove 15 when it does not drive the suction nozzle 21 to press the sealing joint 3. It is wholly aesthetic and uses will not touch the handle 241 mistakenly. When a user wants to release the vacuum state in the box body 1, he can rotate the handle 241 (specifically, rotating to an angle of 90° with the vacuum control device 22) to press the suction nozzle 21 by the handle 241; the suction nozzle 21 will press the sealing joint 3, and the air will enter the box body 1; when the handle 241 is placed to its original position, it can pull up the suction nozzle 21 through the action of the first spring 243 and the suction nozzle 21 will not press the sealing joint 3 any longer and the box body 1 is sealed. When a user takes away the vacuum control device 2, the sealing joint 3 can be directly pressed to allow air into the box body 1. The vacuum control device 2 is also provided with a control assembly 245. When the relief valve control mechanism 24 opens the sealing joint 3, the control assembly 245 can make the vacuum pump 22 to stop working. Specifically, as shown in FIG. 5 and FIG. 6, the control assembly 245 is specifically a switch control structure provided on the relief valve control mechanism 24 and a trigger switch 246 connected to the circuit (the wires are not shown in the figure) of the vacuum pump 22. The working principle of the switch control structure is similar to that of the driving mechanism 242. When the relief valve control mechanism 24 opens the vacuumizing channel 13 (namely, the handle 241 rotates 90°), it drives the control assembly 245 to move and press down the trigger the trigger switch 246 to disconnect the circuit of the vacuum pump 22. The purpose of the control assembly 245: when a user rotates the handle 241, that is to release the vacuum, the vacuum pump 22 should be in a stopped state; when the control assembly 245 is provided, rotating the handle 241 can achieve two purposes: pressing the sealing joint 3 to work, and disconnecting the circuit, without the addition of a new switch.

In this embodiment, referring to FIG. 1, FIG. 4 and FIG. 10, the vacuum control device 2 further includes a switching mechanism 23, the box body 1 is provided with a trigger mechanism 122 corresponding to the switching mechanism 23, when the vacuum control device 2 is mounted to the box body 1, the trigger mechanism 122 triggers the switching mechanism 23, and the vacuum pump 22 is activated only when the switching mechanism 23 is triggered. The switching mechanism 23 and the trigger mechanism 122 can adopt a variety of trigger forms, for example, the switching mechanism 23 is a key switch, and the trigger mechanism 122 is a convex block abutted against the key switch. When the vacuum control device 2 is placed into a vacuum sealed box, the key switch is connected, and the vacuum control device 2 is started. This kind of key is a preferred trigger way, and it is a purely mechanical structure, which can reduce the production costs and meet the working demands; besides, it is more stable. The switching mechanism 23 can also be a magnetic switch, and the trigger mechanism 122 is the magnet abutted against the magnetic switch. When the vacuum control device 2 is placed to the box cover 12, the magnetic switch is turned on and the vacuum pump 22 is started. In addition, there are other trigger forms; all the structures that can immediately start the vacuumizing as long as the vacuum control device 2 is placed in the box body 1 shall fall within the scope of protection in the invention. The switching mechanism 23 is a column switch and a reset spring 232 is arranged at the top of the column switch. When the vacuum control device 2 is placed in the first groove 121 of the box body 1, the trigger mechanism 122 will abut against the switching mechanism 23, and the reset spring 232 can secure the abutting intensity of the switching mechanism 23 and the trigger mechanism 122, to ensure that the vacuum control device 2 starts smoothly and continuously vacuumizes. When the vacuum control device 2 needs to be removed, the reset spring 232 can provide the thrust, to facilitate the removal of the vacuum control device 2, moreover, the reset spring 232 can timely disconnect the switching mechanism 23 so that the vacuum pump 22 stops pumping. It also includes a guide mechanism 231 that restricts the vertical movement of the switching mechanism 23, which is also a guarantee for the smooth abutment of the switching mechanism 23 and the trigger mechanism 122. The switching mechanism 23 and the guide mechanism 231 are arranged integrally which is easier for processing and overall injection molding, making the structure more compact and reducing the processing costs.

In this embodiment, referring to FIG. 2 and FIG. 3, the box body 1 comprises a box base 11 and a box cover 12 that can be mutually detachable and fixed, and a first groove 121 with the shape corresponding to the vacuum control device is arranged at the top of the box cover 12, and the first groove 121 is embedded at the bottom of the vacuum control device 2. Users can mount the vacuum control device 2 on the box cover 12 conveniently and quickly locate it, so that the trigger mechanism 122 can quickly and accurately triggers the switching mechanism 23 to immediately start the vacuum pump 22. There are at least two box bases 11 with different volumes. The box cover 12 can be detachably connected to each box base 11. The same box cover 12 and the vacuum control device 2 can be applied to different volumes of box bases 11. Users can secure the box cover 12 with one box base 11 to form a whole set of vacuum box product according to the size of the items, which can not only meet the storage demands, but also can save the living space. In terms of production, for different sizes of vacuum boxes, manufacturers produce a box cover 12 and a vacuum control device 2, which can correspond to a plurality of different sizes of box base 11. When packaging, different specifications of box base 11 are packed together, which reduces the packaging volume, greatly reduces the production costs and enhances the production efficiency and economic benefits.

In this embodiment, a suspension-type seal 8 is arranged at the connection between the box base 11 and the box cover 12, as shown in FIG. 11 and FIG. 12, comprising a seal body 81 and a seal gasket 82, one end of the seal gasket 82 is connected with the seal body 81 and the other end is suspended; that is, the end of the seal gasket 82 not connected with the seal body 81 can swing upside down, and bonded to the seal under the gravity; There is a certain distance between the connection of the seal body 81 and a seal gasket 82 and the two ends of the seal body 81. Specifically, the seal gasket 82 is arranged the outside of the ring of seal body 81, and the cross section of the suspension-type seal 8 is in a “T” shape at an angle of 90°. The seal body 81 matches with the box cover 12 of the vacuum storage box and supports the overall shape of the suspension-type seal 8, while the seal gasket 82 is covered at the edge of the box body 1. Since there is a distance between the seal gasket 82 and the upper and lower ends of the seal body 81, and one end of the seal gasket 82 is suspended, the seal gasket 82 can swing up and down, and under the action of gravity, the suspension-type seal 8 can be snapped to the edge of box base 11, to form a sheet covering on the edge of the box base 11. As shown in FIG. 13, when the box body 1 is in a vacuum, the seal gasket 82 covers the edges of box base 11, at this time, the outside pressure can press the seal gasket 82 on the edge of the box base 11; even if there is unevenness, since the seal gasket 82 is a sheet shape, it can wrap the unevenness, to greatly increase the sealing of the box body 1. As shown in FIG. 11, the box cover 12 is tight fit with the upper part of the suspension-type seal 8, and the suspension-type seal 8 is secured to the box cover 12, there is no gap between the box cover 12 and suspension-type seal 8, greatly increasing the sealing degree of the vacuum storage box. Specifically the seal body 81 is made of silica gel and the seal gasket 82 is also made of silica gel, which has high softness to meet the variation requirement; in addition, the silica gel can be applied in the foods industry. Specifically, the seal gasket 82 is 2 mm thick, and the distance from the suspended end of the seal gasket 82 to the connection between the seal gasket 82 and the seal body 81 is 5 mm, which can guarantee the degree of variation of seal gasket 82. Overall, the suspension-type seal 8 can effectively improve the seal degree of the vacuum storage box, with simple structure, suitable for extensive application.

It should be noted that the above preferred embodiments are used for description rather than restriction on the invention. Although detailed description has been made, technicians skilled in the art can modify the technical solutions or make equivalent replacements of the technical solutions herein without departing the essence and scope of the technical solutions of the invention. 

What is claims is:
 1. A detachable automatic vacuum storage container, comprising a box body and a vacuum control device, the box body is provided with a vacuumizing channel, wherein the vacuum control device is connected with the vacuumizing channel in a removable manner; one end of the vacuumizing channel is connected to the inner chamber of the box body, and the other end is provided with a sealing joint, the vacuum control device is provided with a suction nozzle, when the vacuum control device is connected to the vacuumizing channel, the suction nozzle is inserted and connected to the sealing joint in an airtight way, when the air pressure of the inner chamber of the box body is higher than the preset threshold, the vacuum control device can pump the air to maintain the inner chamber of box body in a vacuum state.
 2. The detachable automatic vacuum storage container according to claim 1, wherein the sealing joint is made of elastic material, and the end of suction nozzle close to the sealing joint is provided with a tapered portion, and the tapered portion has an increasing diameter in the direction away from the sealing joint.
 3. The detachable automatic vacuum storage container according to claim 2, wherein the suction nozzle is provided with a suction ring.
 4. The detachable automatic vacuum storage container according to claim 1, wherein it further includes a press-type vacuum relief valve arranged on the box body, the vacuumizing channel runs through the press-type vacuum relief valve, and the sealing joint is arranged on the top of the press-type vacuum relief valve.
 5. The detachable automatic vacuum storage container according to claim 4, wherein the vacuum control device further includes a relief valve control mechanism; when the vacuum control device is mounted on the box body, the press-type vacuum relief valve can be opened or closed by operating the relief valve control mechanism.
 6. The detachable automatic vacuum storage container according to claim 1, wherein the vacuumizing channel is provided with a first check valve, the vacuum control device is provided with a vacuum pump connected to the suction nozzle, a second check valve is provided between the suction nozzle and the vacuum pump, and a pressure detecting bypass is provided between the first check valve and the second check valve, the pressure detecting bypass is connected to the pressure detecting apparatus which can control the vacuum pump to stop pumping when the air pressure of the pressure detecting bypass is below the threshold.
 7. The detachable automatic vacuum storage container according to claim 6, wherein the pressure detecting apparatus is a piston-type pressure detecting apparatus, comprising a piston tube connected to the exhausting tube and a piston arranged in the piston tube, the piston tube is provided with a circuit switch, and the circuit switch is connected to the circuit of the vacuum pump; when the air pressure in the exhausting tube is lower than the threshold, the piston moves to a position and the circuit switch disconnects the circuit of the vacuum pump.
 8. The detachable automatic vacuum storage container according to claim 1, wherein the vacuum control device further includes a switching mechanism, the box body is provided with a trigger mechanism corresponding to the switching mechanism, when the vacuum control device is mounted to the box body, the trigger mechanism triggers the switching mechanism, and the vacuum pump is activated only when the switching mechanism is triggered.
 9. The detachable automatic vacuum storage container according to claim 1, wherein the box body comprises a box base and a box cover that can be mutually detachable and fixed by sealing, and a groove with the shape corresponding to the vacuum control device is arranged at the top of the box cover, and the groove is embedded at the bottom of the vacuum control device.
 10. The detachable automatic vacuum storage container according to claim 9, wherein a suspension-type seal is arranged at the connection between the box base and the box cover, the suspension-type seal comprises a seal body and a seal gasket, one end of the seal gasket is connected with the seal body and the other end is suspended; the seal body is fixed to the box cover under the use state, and the seal gasket is bonded to the sealing surface of the box base. 